CONSOLIDATED CONDENSED BALANCE SHEETS (USD $) In Millions, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
CURRENT ASSETS
Cash and cash equivalents	$ 3,760	$ 3,781
Trade receivables, net	5,712	5,395
Marketing and trading assets and other	874	916
Inventories	1,250	1,069
Prepaid expenses and other	391	381
Total current assets	11,987	11,542
INVESTMENTS IN UNCONSOLIDATED ENTITIES	1,965	2,072
PROPERTY, PLANT AND EQUIPMENT, net of accumulated depreciation, depletion and amortization of $24,743 at March 31, 2012 and $23,687 at December 31, 2011	46,903	45,684
LONG-TERM RECEIVABLES AND OTHER ASSETS, NET	767	746
TOTAL ASSETS	61,622	60,044
CURRENT LIABILITIES
Accounts payable	5,522	5,304
Accrued liabilities	2,328	2,533
Domestic and foreign income taxes	248	110
Total current liabilities	8,098	7,947
LONG-TERM DEBT, NET	5,873	5,871
DEFERRED CREDITS AND OTHER LIABILITIES
Deferred and other domestic and foreign income taxes	5,203	4,846
Other	3,701	3,760
Total deferred credits and other liabilities	8,904	8,606
STOCKHOLDERS' EQUITY
Common stock, at par value	177	177
Treasury stock	(4,517)	(4,502)
Additional paid-in capital	7,313	7,286
Retained earnings	36,262	35,142
Accumulated other comprehensive loss	(488)	(483)
Total stockholders' equity	38,747	37,620
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 61,622	$ 60,044